Apparatus for dispensing freshly-refrigerated foods



March 4, 1930. E. c. STYBERG 1,748,963

APPARATUS FOR DISPENSING FRESHLY REFRIGERATED FOODS 7 Filed Aug. 25, 1927 2 Sheets-Sheet. 1

i v PatentedMar; 4, i930 EBNEsr. c. STYBIERGLOF RACINE,WISG'ONSIN,;ASS1GNOR TO THE msmivr REEZER ,II CORPORATION, 'orwmcmn, wrsoonsm, A CORPORATION or WISCONSIN rum-m non DISPENSING rnnsnLY-nnrnlennnrnn swoops ease filed-August 25, 1927. Seria1ll1o 215,339.

My, invention relates tothe preparation and dispensingof ioe-'creamand other cooled or frozen edibles,'and includes among its ob- -je'cts the provision of improvements'in apparatus for preparing andhandling such materials. A g i In the'accompanying drawings; I

Figure'l is a side elevation of one, illustrativetype of deviceaccordingto the inven5 tion;

Figure 2 is a transverse section fon line '22 of Figure 1;-.; 1 Figure 31is a longitudinal section; and

Figure 1 is afragm'entary'section similar to Figure 3, showingthe parts in a difierent position of adjustment. v

. In the embodiment-of the invention sel'ectedfor illustration,- the lower'casing portion 10 has its bottom formed'inthe shape downward fromboth endsto the lowest point r 12, which is somewhatnearer-the rear end "than the front end 7 Short legs 14 terminating of a relatively shallow traysloping gently in rubber feet 16'support the device with the bottom 12 slightly'spacedabove the level ofthe supporting feet, An upper main cover I i. 18 is'detachably connected to the casing portion 10, as by reversely curved prongs 20 at the rear.: 'The walls ofrthe cover 18 areofl? set at'22 to form a shoulder for abutment with'the-uppe'r edge of the'casing 10 and support theweight of'the cover. Upon rotation vof the cover ninety degrees 'ina' clockwise direction from theioosition of Figure.

1, the prongs 20 may be withdrawn from the apertures at 2 1 in the casing. The cover may be fastened against removal by f suitable means such as pivoted catches '21 entering receiving eyelets 23' mounted on the sides of the casing 10 V'When the cover is thus fas tened down, the handle 25 may be employed "to pickup or manipulate the entire device.

' The enclosure is'completed by a lid 26 having prongs 28 at'itsupper andrearmost edge'passing through openings'in the cover "18 to provide a hinge connection; as clearly indicated in Figure 4; It" will alsofbe obvious that upon opening the lid somewhat farther than the position of Figure 4, the

prongs 28*may be withdrawnand thelid ant. 'The drum illustrated is supported by a small pintle 32 rotatably journaledat 34 in. a bearing formed by semicircular openings in theedgesof the casing 10 and cover I 18; and at the other side'by a much larger cylindrical flange 36 having similar support- 'ing engagement with the edg es'of the'cas ing' 10 andcover 18, and surrounding-the 'opening 37 for admitting refrigerant to'the drum. The (means illustrated for closing said opening 37 comprises a ring 38 of wedge- "shaped cross-section and of flexible material such as rubber, capable of forming a tight seal with the tapered inner wall of the flange 36. 'Thering is supported between opposing cup-shaped" discs 40 andl l2 having their outer edgesfiared back 'tofit the wedge surfaces of the ring, and clamped together by suitable means such as the bolt 4.4 permanently. -rivj- 'ete'd to the disc 40 ,a'nd the'wingnut 46'abut- T ting the disc 42. The periphery 48 ofthe drum isismooth, and the ends ofthe drum I "may be corrugated as at 50 to impart addi tional stifiness. "For rotating the drum, I i

provide; an integral lateral extension '52 ex-. tending radially from one side of' the pintle 36 and-carrying a suitable handle 54: at its outer end.- The. requisite stiffness for this! v maybe obtained without the use of cast? lngs by turning downa stiffening fiange 56j Imount a combined scraper' and charge holder, comprising a it trough 58 closed at oneie'nd only; by an end a.

wall 60. 1 The edge of the metal at the other end is flared back as at 61 to form a'smooth lip'for emptying' out the' contentse The J troughis pivoted about an axis parallel to along the edge of'the arm.

In front of the drum that-of the drum and close in front of-the next the drum is. continued upwardly above from the sides of the casing 10. The wall the "pivotal axis and curved outwardly as at 66.- Upon referenceto Figure l, it will be evi I dent that the-operator can,- by grasping the finger piece 68, rotate the holder and scraper from the full line position to the dotted line position, in which it will engage the periph-' cry of the drum and scrape off any film of frozen material with which the drum may be coated. When the receiver is not held in full line position by the operator, itfalls back to the dotted line position of Figure 4,being prevented from further rotation in the clock- -wise=direction by a stud 7 0 below the pivotal axis.

In use, the structure above specified is em-' substantial suction inside the drum, which .willassistin maintaining the seal, The device is now returned to upright position, and uponlifting the lid26 a charge of cold liquid to be frozen, such as milkor the various mixtures from which ice-creams and sherbets may be .formed,can bepoured into the front end of the tray.

Upon rotating the drum in a counter-clockwise direction, a film of material will be taken up by the periphery of the drum from this body of'liquid, and the movement of the re ceiver to the dottedline-positi'on of Figure 4: will continuously remove the frozen film from the drum and direct it into the receiver. After the appropriate amount has accumulated, the entire receiver may be easily lifted .out of the device. and the contents thereof transferred to a suitableserving dish or container. Alternatively, if it is desired to equalize or adjust the temperature of or mellow the material before-serving, it may be transferred to a refrigerator, or it may be left in thereceiver. In the full line positionof Figure 4, the receiver is not in direct contact with the drum forheat transfer, but the air space surrounding the receiver will be rather effectively cooled by the'drum. With the lid 26 entirely closed, one temperature condition will prevail in the casing, and with the lid propped open more or less, varying temperature conditions by reason of circulation of outside air. maybe obtained if desired.

The removal'of the liquid material from the bottom of thetray may be continued until substantially all of the liquid has-beentransferred in frozen form to the receiver. Thisis .because the clearance at 12 is'very small, and

because the contact of the casing 10 with the outer air will prevent the casing 10 from getting cold enough'to-permit any of the liquid in .contact withthe casing to become actually .frozen.

After aportion of the liquid poured'in has been frozen, in case it is desired to change the contents, the entire device may be readily picked up and the contents of the tray poured back into any suitable receiver, or if the user prefers, the front feet 16 may be employed as a fulcrum, and the device may be tipped up on them and emptied without lifting its entire weight. The center of gravity of the entire device is approximately at the point 7 2 in -Figure l, and it will benoted that when the center of gravity is substantially vertically above therfeet 16, the breast of the tray at 74at'the bott0m'of the top 7 6 will engage the supporting surface. Any danger of slipfore removingthe charge fromthe drum, can be immersed 1n hot water or sub ected to steam ets for quick cleaning and sterilizing.

Without further elaboration, the foregoing will so fully explain the gist of my invention, that others may,by applying currentvknowledge, readily modify and adapt the same for use undervarious conditions of service,without eliminating certain features which may properly be said to constitutethe essential items of novelty involved, which items are intended to be defined and securedto me by the following claims.

What I claim is:

.lrAn instant freezer having a freezing cylinder, a cylindrical flange at one end having an inner surface defining a charging opening, and a plug for closing said opening, said plug-comprising oppose-d discs having their outer edges flared back to define a wedge-shaped peripheral groove, a wedgeshaped annulus in said grooveand means for drawing saiddiscsatogether to expand said annulus against the inside surface of said opening. i g g '2. 'A freezer having a freezing cylinder, .a cylindrical flange at one end having ataperedinner surface defining a charging opening, and a plug for closing said opening,

said plug comprising opposed discs having their outer edges flared back to define a wedge-shaped peripheral groove, a wedgeshaped rubber annulusin. said groovean-d means for drawing said-discs togetherlto, expand said annulus-against theinside surface of said opening.

3. A freezer having a freezing cylinder, a

cylindrical flange at one end having a tapered.

inner surface-defining acharging opening, and-a plug for closingsardopening, said plug vcomprising a, rubber annulus and means for expanding said annulusagainst the in- 7 side surface of said opening.

4. An instant freezer compri housing having its bottom formed into a tray for holding a liquid charge, a handle on top of said freezer behind the center of gravity a lip'at the front en-d'of said, tray over which the liquid in the tray can be poured out, supporting feet projecting from said tray, the front feet being positioned near said, lip to remain in contact with a flat support during tipping of said freezer until said feetand lip are. substantially under the cen- V V ter-of gravity. i

Y name to this specification.

In testnnony whereof, I have signedmy I ERNESTO. sTY ERe. I

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